diff --git a/[refs] b/[refs]
index 44ab041aac74..5148f0a0c3bc 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bcb9b99d1fb6a1cbe592f131dc95450d2f18c91f
+refs/heads/master: 475c63bded322545d1e9ccc5930c8903d2c97c4c
diff --git a/trunk/arch/ia64/mm/discontig.c b/trunk/arch/ia64/mm/discontig.c
index 96722cb1b49d..d3edb12f3cf9 100644
--- a/trunk/arch/ia64/mm/discontig.c
+++ b/trunk/arch/ia64/mm/discontig.c
@@ -506,6 +506,12 @@ void __init find_memory(void)
 	max_pfn = max_low_pfn;
 
 	find_initrd();
+
+#ifdef CONFIG_CRASH_DUMP
+	/* If we are doing a crash dump, we still need to know the real mem
+	 * size before original memory map is reset. */
+        saved_max_pfn = max_pfn;
+#endif
 }
 
 #ifdef CONFIG_SMP